baber/WOPTO huggingface dataset:
Patent NL-8500477-A (NL)
IPC: C08J7/02
Filed: 1985-02-20
Abstract: Highly stretchable gel articles are prepared by contacting a shaped solvent-containing or solvent-free article of a high molecular weight polyolefin with a gaseous or liquid swelling agent at elevated temperature untill the swollen article contains 60-99 % (wt) of swelling agent, and cooling this article below the gelling temperature. The gel articles can be transformed into articles (filaments, tapes, films, tubes, bars) of high strength and modulus, by stretching at elevated temperature.
Patent NL-8502609-A (NL)
Title: Device to form skin fold for subcutaneous, esp. self injection - has two resiliently compressible arms with facing skin-engaging frictional or adhesive areas and releasably locking in compressed position
IPC: A61M5/00
Filed: 1985-09-24
Abstract: The device is intended for producing a fold (15) in the skin of a patient for inserting a syringe needle to administer a subcutaneous injection. It comprises a strip of which the ends are bent (14) down to form two arms (3) with their lower ends bent up (4,5), the extreme ends (6) extending through a slot (at 18) in the centre of the strip. The facing sides of the upwardly bent portions (4,5) have surface areas (4) capable of frictional or adhesive (e.g. via double-sided adhesive tape) contact with the skin, the arrangement being such that, by pressing the arms together (at 12a,b) against the resilience (at 14) of the strip material, the fold is formed. The ends (6) have a saw tooth profile on one edge for releasable engagement with a lip (18) in the slot to hold the device in the compressed position during the injection.
Patent NL-8602967-A (NL)
IPC: B65G15/36
Filed: 1986-11-21
Abstract: Conveyor belt having a carrier body in which are disposed at least three layers, of which two are rigid in respect of deflection in transverse direction and one layer provides longitudinal strength. One of the layers imparting transverse rigidity is combined with the layer imparting longitudinal strength to form one layer consisting of longitudinal and transverse wires. At least the transverse wires (8) are made of high modulus material.
Patent NL-8702057-A (NL)
Title: Illustrated sheet-display equipment - has guides for sheet supports running through storage and display sections
IPC: G09F11/30
Filed: 1987-09-01
Abstract: The equipment displays one or more illustrated sheets selected from a number of them. Each sheet (26) is fixed to a support (27). The equipment comprises both storage and display sections, while guides (22) for the supports run through both sections. Each support can comprise a transparent plate, to the side of which an illustrated sheet is fixed, which is suspended in a frame.
Patent NL-8802802-A (NL)
Title: Picture display device with compensation coils - has two coils wound on rod-shaped core portion arranged in v formation
IPC: H01J29/00
Filed: 1988-11-15
Abstract: The picture display device comprises a display tube, a deflection unit (8) and a compensation coil system (3) for generating a magnetic compensation field which is oppositely directed to the line frequency radiation field of the deflection unit in a space in front of the display screen. The compensation coil system comprises two coils (12,13,16,17) each being wound on a rod-shaped core portion (14,15,18,19). The core portions are arranged in a V-formation in the y-z plane, symmetrically relative to the x-z plane. Alternatively, the compensation coil system may comprise two pairs of coils arranged in this way and located in planes parallel to the x-y plane and equidistantly therefrom.
Patent NL-9000934-A (NL)
Title: Constant air-current-supply system - has airspeed sensor in working area and frequency-converter regulating fan, for quiet operation
IPC: G05D7/06
Filed: 1990-04-19
Abstract: Constant air current is maintained in an enclosed working area supplied by an electrically-driven fan. An air-speed sensor is mounted in the working area, connected to a controller. A frequency converter regulates the speed of the fan, which is driven by a single- or multiphase supply. Where a three-phase supply is used, the converter can be arranged to supply separate control signals for each phase.
Patent NL-9201897-A (NL)
Title: Distribution centre
IPC: E04B1/00
Filed: 1992-10-30
Abstract: The invention relates to a secured device comprising a detached building and a surrounding area of land, the building having an entry and an exit for means of transporting valuables. The area of land is designed in such a way that the entry for a means of transporting valuables is only accessible along an access route with at least one sharp bend in the vicinity of the entry; a closable storage place is provided in the building; at least one closable positioning room for a means of transporting valuables is located on the connecting path between the entry and the storage place, and the storage place is a closable opening in a second closable positioning room.
Patent NL-9202299-A (NL)
Title: Method and device for processing sheets, such as documents, in the form of sheets of paper or material of a similar strength which have either been collected into a bundle or are in the form of single sheets
IPC: B43M3/04
Filed: 1992-12-31
Abstract: The invention relates to a method for processing sheets, such as single documents, in the form of sheets of paper or material of a similar relative strength which have been collected into a bundle or are in the form of single sheets and may be of different quality and length, in a folding station, in which method the sheets are conveyed along a path, the sheets having a leading edge which moves forwards in an original direction of movement until it has reached a specific position, folding means then forming a fold in the sheets; during the folding operation, the direction of movement of the leading edge is reversed with respect to the original direction of movement. The method is characterized in that, if desired, the sheets are guided onwards in the original direction of movement of the leading edge LE of the sheets S and are removed for further processing. The invention also relates to a device for carrying out the method according to the invention. <IMAGE>
Patent NL-9300064-A (NL)
Title: Method for obtaining a homogeneous light distribution (HLD) in intravascular irradition with laser light, as well as laser catheter to be used in this method, and procedure for the manufacture thereof
IPC: A61B18/22
Filed: 1993-01-13
Abstract: In Excimer Laser Coronary Angioplasty (ELCA), a technique in which the light from an excimer laser is shone via a quartz multi-fibre catheter into coronary arteries at places where they are constricted, homogeneous light distribution (HLD) in intravascular irradiation is obtained by virtue of the fact that the laser catheter, consisting of a coaxial bundle of very fine quartz fibres, is provided at the light emission end of the bundle with a sealing quartz window, which by fusion with the ends of the fibres forms an integral whole therewith. The diameter of the window is adapted to the diameter of the fibre bundle, and the thickness of the window is chosen in such a way that the cones of light coming from the individual quartz fibres overlap within this window. As a result the effect is achieved that on the emission side of the window there is a homogeneous light distribution, comparable with that which would arise if the light were conducted through a single broad fibre. Because of the great homogeneity of the irradiation light so obtained, the so-called "dead spaces" between individual fibres are eliminated, and no marginal zone effects occur. The new laser catheter retains the advantage of the use of a large number of fine fibres, as a result of which a flexible catheter can be obtained, but has eliminated the disadvantage thereof, namely a considerable number of dead spaces.
Patent NL-9400637-A (NL)
Title: Wheel-surrounding housing
Inventor: NOORT GUSTAAF FRANS MAURICE VA
IPC: B62D25/16
Filed: 1994-04-20
Abstract: The invention relates to a casing, such as for example a wheel housing, which at least partially surrounds a wheel of a vehicle and is provided with at least one edge which projects on the wheel side of the casing wall. The edge comprises a straight rib which includes an angle other than 90 degree with the longitudinal axis of the vehicle.
Patent PT-70869-A (PT)
Title: Improved process for the production of single cell protein
IPC: C12N1/32
Filed: 1980-02-26
Abstract: A process for the production of prokaryotic, particularly bacterial, single cell protein which includes a step in which whole and/or ruptured @micro-organism@ cells are treated with an oxidising agent or are subjected to other oxidising means. The oxidising agent can be added during cultivation and/or during subsequent treatment and/or it can be added to the product obtained. The treatment is preferably carried out at a pH between 7.0 - 9.0. The preferred oxidising agent is hydrogen peroxide. The product of the process has a number of advantages over known prokaryotic single cell protein, most important being that its use alleviates difficulties of reduced feed intake, reduced live weight gain, poor feed conversion ratios and liver damage experienced when single cell protein is fed to domestic fowls in high dietary inclusions.
Patent PT-73467-A (PT)
Title: Self-closing tilting valve
IPC: B65D83/14
Filed: 1981-08-03
Abstract: A self-closing tilting valve which is insertable in a valve mounting provided in the lid of a container filled with product under pressure, comprises a substantially rigid mandrel member having a base part and a tip part, and an enveloping member surrounding said mandrel member and having a foot part and a head part with an outlet opening. At least one passageway for product from the container leads along the mandrel member to the outlet opening, and at least one obturating face is provided on the inner wall of the enveloping member and a corresponding counter-face on the mandrel member in the region of said passageway, contact between said obturating face and said counter-face obturating said passageway in closed position. The tip part of said mandrel member and the head part of said enveloping member bear contact faces remaining in contact with each other during closed as well as during open position. One of the lower end parts of the two members embraces the lower end part of the other member, and one of the two members can be inserted in the mounting of the container lid. At least the head part and the foot part of the entire enveloping member consist of elastically flexible material which is deformable in radial as well as in axial direction with respect to a central longitudinal axis of the mandrel member. The head part of the enveloping member surrounds the tip part of the mandrel member and is snugly and sealingly fitted thereon in closed position.
Patent PT-78331-A (PT)
Title: Process for the preparation of urea condensation polymeric products and use thereof as binders of thermosseting varnisbes
IPC: C08G71/00
Filed: 1984-03-28
Abstract: The present invention relates to a process for the preparation of urea condensates and to their use. To prepare these urea condensates, a primary di and/or polyamine is reacted with urea, a secondary monoamine and if appropriate a polyalcohol at elevated temperatures in the presence or absence of catalysts, and the ammonia formed is separated off. These urea condensates are suitable as binder components in thermosetting surface coatings.
Patent PT-86520-A (PT)
Title: Process for preparing 2,4,5-trisubstituted phenol derivatives useful as anti-inflammatory agents
Inventor: BOLLINGER NANCY GRACE
IPC: C07C65/40
Filed: 1988-01-11
Abstract: This invention provides benzene derivatives of the Formula I <CHEM> pharmaceutical formulations of those derivatives, and a method of using the derivatives for the treatment of inflammation in mammals.
Patent PT-93848-A (PT)
Title: Television device with multiple transmission channels
Inventor: NG SHEAU-BAO
IPC: H04N7/12
Filed: 1990-04-23
Abstract: The present invention relates to a television device wherein the television signals originating from a broad- band, wide screen high definition television (HDTV) source 110, are sent via two conventional 6 MHz NTSC channels. The first (main) channel signal 115 includes augmented definition and coded wide screen information, compatible with existing NTSC receivers. The second (auxiliary) channel signal 130 augments the first channel signal, and includes information representing the difference (δ S) between the information sent via the first channel and the information from the HDTV source. The first and second channel signals are received 132, 134, by an HDTV receiver for reproduction 136 of an HDTV image. Before transmission, the second channel information, in digital form, is coded 142 in a plurality of sub-band components each containing, chiefly, image border information. Each sub-band component is subjected separately to digital data compression before transmission. The sub-band encoding process significantly reduces the perception of noise associated with the data compression process in a reproduced HDTV image. <IMAGE>
Patent SE-8903545-A (SE)
IPC: B60D1/62
Filed: 1989-10-25
Abstract: In a trailer coupling for coupling together a towing vehicle and a trailer, a coupling portion (2) mounted at the rear of the trailer is arranged to receive, via a coupling mouth (6), a coupling end portion (8) of a drawbar attached to the trailer. The coupling end portion (8) is connected with the drawbar via a pivot (10). The towing vehicle coupling portion (2) and the trailer coupling end portion (8) include means (74,76) for mutual coupling together of said portions (2,8), as well as means (94,96) for providing, in association with said coupling together, an automatic interconnection of fluid and current conductors of the towing vehicle and trailer, respectively. Said coupling portion (2) and said coupling end portion (8), as well as said means (74,76) for mutual coupling together are mutually so shaped and arranged that said portions (2,8) are rigidly and unmovably connected to each other in the coupled together state. The means (94,96) for automatic interconnection of fluid and current conductors include an exterior coupling panel (94,96) on each of said coupling portion (2) and coupling end portion (8), said coupling panels (94,96) being arranged to be mutually rigidly coupled together at said coupling together and thereby to establish the interconnection between the fluid and current conductors of the respective vehicles.
Patent SI-8811559-A (SI)
Inventor: SCHNELL PETER
IPC: B29C43/22
Filed: 1988-08-11
Abstract: Postopek za pripravo prepregov z visoko
vsebnostjo vlaknene mase 500 do 2500 g/m2, pri
katerem vlaknene pramene iz stekla, ogljika, Aramida,
keramike, kovine ali drugih anorganskih in/ali organskih
vlaknenih materialov, v danem primeru skupaj s
tkaninami, polami, runi ali rogoznicami iz enega od teh
materialov, brez dodatka topila prepojimo z duroplastičnimi
smolami in vodimo v dvotračno stiskalnico,
v katere prvem delu, t.j. tlačno-ogrevalni coni, prevedemo
impregnirani vlaknati material ob učinkovanju
tlaka in toplote v stanje B, ter v katere drugem delu, t.j.
v integrirani tlačno-hladilni coni, ohladimo pod tlakom,
s čemer se stanje B stabilizira.
Patent SI-9111110-A (SI)
Title: Process and device for dosing powders
Inventor: GUPTE ARUN R
IPC: A61J3/00
Filed: 1991-06-25
Abstract: In order to produce an aerosol, a velvety or velours-like material charged with a powder is brought into an air current.
Patent BG-101279-A (BG)
Title: Composition and method for the preparation of fibrine adhesive
Inventor: MARKOV NIKOLAJ M
Filed: 1997-03-04
Abstract: The invention relates to a method and a composition forautologic adhesive which is used in surgical practice for reducingthe complications in the postoperative period. The adhesiveconsists as a first ingredient: from 40 to 150 mg/ml fibrinogen,from 10 to 17 U/ml factor XIII, from 60 to 160 g/ml plasminogen,from 500 to 6000 g/ml fibronectin, and as a second ingredient -calcium glyconate in quantity equal to the first ingredient in ml,and inhibitor of the fibrinolysis in concentration from 300 to10000 units. By the method, manual plasmapheresis is performed bythe separation of 2 units of plasma from the patient for whom theadhesive is meant. The latter is frozen at -80°C for 12 h., afterwhich is it unfrozen at 4°C in water bath for 2 hours bysubsequent centrifuging of 1000 x g for 15 min. In this way thefirst ingredient is produced containing from 40 to 150 mg/mlfibrinogen, from 10 to 17 U/ml factor XIII, from 60 to 160 g/mlplasminogen and from 500 to 1600 g/ml fibronectin. Calciumgluconate is used for the second ingredient in a quantity equal tothe first ingredient, and antifibronilytic from 300 to 10000units.2 claims
Patent BG-104517-A (BG)
Title: Method for the generation and use of geothermal energy
Inventor: MILEV TRAJKO K
IPC: F24J3/08
Filed: 2000-06-08
Abstract: The method is used in occurrences having no outlet to the ground. It is applied when, under the piezometric level (3), a vertical shaft (1), hydrological bore-holes (2), underground pumping station (5) and water pumping bore-holes - driven underground or across a hot-water line from the surface are built. The thermo-mineral water is pumped to the ground, renders its heat energy by a heat-exchanger (7) of potable water from other sources and is returned to the earth without violating its physico-mechanical balance. The heated water from the external source is transported to the users (10, 11) along a hot-water line (9). After receiving part of the rendered energy, by mean of a recirculation pumping station (12) the cooled water is sent back to the heat-exchanger (7) for new heating. 3 claims, 1 figure
Patent BG-106020-A (BG)
Title: Inhibitors of impdh enzyme
Inventor: STAMOS DEAN
IPC: C07C275/42
Filed: 2001-10-16
Abstract: The present invention relates to compounds, which inhibit IMPDH with formula This invention also relates to pharmaceutical compositions comprising these compounds. The compounds are pharmaceutical compositions of this invention are particularly well suited for inhibiting IMPDH enzyme activity and consequently, may be advantageously use as therapeutic agents for IMPDH-mediated processes. This invention also relates to methods for inhibiting the activity of IMPDH using the compounds of this invention and related compounds. 28 claims
Patent BG-110238-A (BG)
Title: A construction mixture
Inventor: TSANOVA VESKA
IPC: C04B14/06
Filed: 2008-10-23
Abstract: The construction mixture is aimed at floor coatings application. The mixture contains in wt.%: gypsum 50 to 55%, quarz sand 30,15 to 40,76% marble powder 7 to 10%, cement 0,8 to 1,5%, hydrated calcium hydroxide 0,8 to 1,5%, anti foaming agent 0,08 to 0,2%, tartaric acid from 0,06 to 0,15% and super plastisizer 0,5 to 1,5%.
Patent BG-111311-A (BG)
Title: Cleaning system of transparent surface vehicles
Inventor: STOYKOVA ROSITSA
IPC: B60S1/48
Filed: 2012-09-20
Abstract: This invention relates to onboard systems for cleaning windows and headlights on the vehicles and find application in the manufacture of all types of transport facilities. The system includes an electric powered windshield wiper whose cleaning feathers (1) are embedded devices for spraying cleaning fluid on the cleaning surface. Each cleaning feather (1) is formed so, that at its length is formed a cavity, in which is embedded a hollow cylindrical body (2). On the underside of the body (2) are made nozzles (3) for spraying a cleaning fluid under pressure, which are arranged at equal distances from each other. For each of the nozzles (3) of the cylindrical body (2) is made an opening (3.1) in the cleaning feather (1) omitting the cleaning liquid from the nozzle (3) to the cleaning surface. The system includes connected in a common hydraulic system reservoir, pump and heater for supplying cleaning fluid with temperature, consistent with the climatic conditions, to the hollow cylindrical body (2).
Patent BG-112872-A (BG)
Title: On-board electric vehicle control system
Inventor: ILIEV SIMEON
IPC: B62D1/00
Filed: 2019-01-23
Abstract: An on-board electric vehicle control system which is located on the gripping surface of the steering wheel housing with at least one switchable control element (5, 6, 7, 8) for controlling at least one function of the driver assistance system of the motor vehicle, characterized by the fact that the steering wheel consists of three main components: left (1) and right (2) handles and a housing (3), on which, at an angle to the axis of the steering shaft is mounted a display (4) equipped with a controller (15).
Patent CN-1271632-A (CN)
Title: 用于叠状工件的电子束焊机及焊接方法
Inventor: YAO SHUN
IPC: B23K15/06
Filed: 2000-05-12
Abstract: 本发明电子枪位于低真空工作室上方,工件装在旋转工作台上,旋转工作台与旋转电机联接,气缸装在旋转工作台下方一侧,且在低真空工作室外部下方,旋转工作台的底平面位于低真空工作室内底槽内上,密封圈设置在旋转工作台下。电子束进行外道环缝焊接,工件穿入面为全封闭,并大于360°,工件穿出面为开口环型,圆弧角大于330°,小于350°,下一道焊缝在工件穿出面的起始点与终止点相差一个圆弧角,至少相差15°,并在90°以内。
Patent CN-1315038-A (CN)
Title: 一种包括可调节倾角的透镜系统的光学扫描装置
Inventor: STINESEN B J
IPC: G11B7/08
Filed: 2000-06-16
Abstract: 本发明涉及一种用于扫描信息载体(9)的光学扫描装置(17)。扫描装置包括一个辐射源(31),一个具有一光轴(45)用来把辐射束(47)聚焦到信息载体上的透镜系统(43)。从光轴的横向看,透镜系统弹性悬挂在扫描装置的悬挂元件(63),悬挂元件挨着透镜系统布置。扫描装置还包括一个带有第一部分(97)和第二部分(99)的调节装置(89),第二部分可以相对于第一部分移动,以把透镜系统绕两个相互垂直的倾斜轴(91,95)而相对于信息载体设定一倾斜角。调节元件的第二部分设置在悬挂元件上,调节元件装置的第一部分设置在挨着透镜系统设置的支撑元件(101)上。通过这种方式可以大大降低光学扫描装置的结构高度。
Patent CN-1385966-A (CN)
Title: 数字逻辑模拟方法
Inventor: ZHU SHANGZU
IPC: H03K19/20
Filed: 2001-05-14
Abstract: 本发明为一种数字逻辑模拟方法,是通过定义逻辑电路中每一节点的一节点状态具有高电位、低电位、未知、反未知等四种状态,而完成各种逻辑门的真值表(truth table)并依此来进行数字逻辑的模拟,以避免习用模拟方法中无法判别的假未知状态(false unknown state),从而增进数字模拟的准确度与精确性。
Patent CN-1391334-A (CN)
Title: 一种差模和共模集成滤波器
Inventor: HU YUEQUAN
IPC: H01F38/10
Filed: 2001-06-08
Abstract: 本发明涉及一种差模和共模集成滤波器。传统的集成滤波器存在着实施较为复杂等不足。本发明提供的差模和共模集成滤波器，包括磁心、两线圈和用于绕制线圈的骨架，磁心包括口型磁心和I型磁心，骨架扣在口型磁心的框柱上，两线圈绕制在骨架，并且，I型磁心横置于口型磁心的窗口上，且位于两线圈之间。本发明还提供了日型磁心与I型磁心组合的结构。
Patent CN-1386268-A (CN)
Title: 在记录介质的信息层上记录信息信号的方法和装置
Inventor: DEKKER M J
IPC: G11B7/125
Filed: 2001-04-19
Abstract: 本发明涉及到在记录介质的一个相变层中记录信息信号(10)的方法和装置。用一个写入脉冲序列(13)记录一个标记,而用一个擦除脉冲序列(14)擦除有待记录的标记之间的早先的标记。使擦除脉冲之间的偏置功率电平(191)依赖于记录速度,从而减少所记录的标记的抖动,同时在擦除过程中防止热交扰写入。
Patent CN-1395743-A (CN)
Title: 形成金属布线的方法和用于形成金属布线的半导体制造设备
Inventor: HIDEAKI YAMASAKI
IPC: H01L21/285
Filed: 2001-11-13
Abstract: 一种金属膜形成方法，包括：步骤(a)(s13，s15)向基底阻挡膜(3)依次输送多种原料气体，其中至少一种气体包括金属；和(b)(s14，s16)在输送步骤(a)的原料气体之后，分别对步骤(a)的原料气体进行抽真空－排放或用其它种类气体替换步骤(a)的原料气体，由此在基底阻挡膜(3)上形成超薄金属膜(5)。
Patent CN-1422413-A (CN)
Title: 薄片智能卡制造方法
Inventor: HEINEMANN E
IPC: B42D15/10
Filed: 2001-04-04
Abstract: 本智能卡至少由两层(1、2)纸或薄膜作为衬底材料叠压而成，其中一层嵌入有半导体芯片(6)，第二层具有连接触点(3)以及导电通路或外部连接面(4)。半导体芯片的触点经过导电(7)连接到第二层的连接触点(3)。该智能卡生产不需要芯片模块。带有IC和触点的衬底材料能够以连续轧辊形式进行轧制，与纸张生产形式相同。
Patent CN-1492835-A (CN)
Inventor: HELMLE THEODOR
IPC: B66B5/02
Filed: 2001-07-26
Abstract: 本发明涉及一种电梯，特别包括一没有机构仓的缆绳驱动升降系统的支承框架(8)，并包括小型的组合到升降箱(1)和/或其支承框架(8)中的并与制动器组合的驱动滑轮驱动机构，本发明的目的是提供这样一种类型的电梯，它可以预装在升降井外面，形成具有多功能的可被安装的单元，其特征在于：其驱动机构(7)装有永久磁铁激励同步马达作为驱动源；其驱动机构(7)的操作电子元件和控制电子元件根据整个升降系统操作的需要，形成共用的相互作用的功能单元，以构成电中心单元(10)；其电中心单元(10)与升降箱(1)或其支承框架刚性连接。
Patent CN-1774261-A (CN)
Inventor: ULRICH BENDER HANS-MARKUS WIES
IPC: A61K31/353
Filed: 2001-10-30
Abstract: 本发明提供了采用整联蛋白受体α v β 3 和/或α v β 5 的拮抗剂预防和/或治疗由眼中血管生成而导致的患者眼疾的方法和组合物。该组合物可为纳米颗粒并通过注射至眼的巩膜内对眼睛给药。
Patent CN-1467495-A (CN)
Inventor: ZHANG LI
IPC: G01N27/30
Filed: 2002-07-08
Abstract: 本发明公开一种旁路超临界水氧化环境pH值在线测试方法及其专用设备。它采用旁路工作方式，将一种标准溶液通过pH值传感器注入电化学池中，参比溶液通过参比电极注入电化学池中，测得pH值传感器相对于参比电极的电位E 1 ；将另一种标准溶液通过pH值传感器注入电化学池中，用同样方法注入参比溶液、测得pH值传感器相对于参比电极的电位E 2 ；停止标准溶液注入，将测试溶液注入电化学池；同时不断地向参比电极注入参比溶液、采集pH值传感器在测试溶液环境中相对于参比电极的电位E test ；取E 1 、E 2 、E test 数据按高温流体pH值计算公式得测试溶液的pH test 值。它对测试环境无干扰、无污染、测试精度高、工作温度范围宽。
Patent CN-1410392-A (CN)
Title: 大块纳米晶碳化钨材料的制备方法
Inventor: XUE QUNJI
IPC: C01B32/949
Filed: 2002-10-22
Abstract: 本发明公开了一种大块纳米晶碳化钨陶瓷材料的制备方法。选用重量百分数分别为铝12－21％，三氧化钨75－86％，碳1－5％的粉状反应物，在350－380℃温度下制备大块纳米晶碳化钨陶瓷材料。该方法与制备纳米晶陶瓷材料的现有方法相比工艺及所需设备简单，成本明显降低，制备的材料具有较大的尺寸、良好的微观组织结构及力学性能。